"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you or your kids are preparing for an advanced math or science course, you’re going to need a graphing ...

If you or your kids are preparing for an advanced math or science course, you’re going to need a graphing calculator. These handy machines can process complex calculations (and simple ones), including ...

This year, high school juniors and seniors will buy a $100 calculator that's older than they are. You remember the TI-83: the brick-sized graphing machine you likely covered in stickers and used to ...